The SFA-503663416-15KF-S1 from ERAVANT is a Frequency Multiplier with Input Frequency 12.5 to 16.5 GHz, Output Frequency 50 to 66 GHz, Input Power 1 dBm, Output Power 16 dBm, Harmonics -20 dBc. Tags: Module with Connectors, Waveguide, Active, Waveguide Multiplier. More details for SFA-503663416-15KF-S1 can be seen below.